Polyelectrolyte self-assembly

Keywords Bioactive Layer-by-layer Multilayered films Polyelectrolyte self-assembly Remote release... 

Figure 12.14 The layer-by-layer polyelectrolyte self-assembly process for...

Table 2 Some indicative examples of protein/polyelectrolytes self-assembly and generation of various supramolecular structures...

Han FS, Higuchi M, Kurth DG (2008) Metallo-supramolecular polyelectrolytes self-assembled from various pyridine ring substituted bis-terpyridines and metal ions photophysical, electrochemical and electrochromic properties. J Am Chem Soc 130 2073-2081. doi 10.1021/ja710380a... 

Keywords Complex coacervate Coordination polymers Layer-by-layer Micelles Polyelectrolytes Self-assembly Supramolecular polymers... 

COMPOSITE POLYELECTROLYTE SELF-ASSEMBLED FILMS FOR CHEMICAL AND BIO - SENSING... 

Keywords. polyelectrolyte self-assembly, organic dyes, enzyme/indicator optrode, immunoglobuline, UV-visible spectroscopy, SPR, interferometry... 

Method of polyelectrolyte self-assembly was successfully implemented for designing and fabrication of composite sensitive membranes containing different macromolecules, such as organic dyes, enzymes, immunoglobulines. 

Composite Polyelectrolyte Self-Assembled Films for Chemical and Bio-Sensing L. Rossi, R. Casalini and M. C. Petty 371... 

Lowack K and Helm C A 1998 Molecular mechanisms controlling the self-assembly process of polyelectrolyte multilayers Macromolecules 31 823-33... 

FIG. 6 Structures of an important class of polyelectrolytes used for deposition of layer-by-layer self-assembly. 

Nonhomogenous distribution of charge inside fully condensed DNA/polycation particles has been discussed earlier, in Section lll.F.l. Since it takes only 0.9 equivalents of positive charges to condense DNA in aqueous environment, there should be an excess of positive charge on the surface of completely condensed DNA/polycation particles. This fact opens the opportunity to form multilayered structures based on alternations of polyelectrolytes of opposite charge. Details of this approach of DNA/polyion self-assembly are discussed in Section III.F.9. 

Paloniemi, H., Lukkarinen, M., Aaritalo, T., Areva, S., Lerro, J., Heinonen, M., Haapakka, K and Lukkari, J. (2006) Layer-by-layer electrostatic self-assembly of single-wall carbon nanotube polyelectrolytes. Langmuir, 22, 74—83. 

Kidambi, S., Chan, C., and Lee, I. (2004) Selective depositions on polyelectrolyte multilayers Self-assembled monolayers of m-dPEG acid as molecular template./. Am. Chem. Soc. 126, 4697-4703. 

P.A. Neff, A. Naji, C. Ecker, B. Nickel, R. Klitzing, and A.R. Bausch, Electrical detection of self-assembled polyelectrolyte multilayers by a thin film resistor. Macromolecules 39, 463 466 (2006). 

M. Schonhoff, Self-assembled polyelectrolyte multilayers. Curr. Opin. Coll. Interface Sci. 8, 86-95... 

Amide bond is an effective anchor to connect CNTs to substrate surfaces. Lan et al. [52] covalently assembled shortened multi-walled carbon nanotubes (s-MWNT) on polyelectrolyte films. The shortened MWNT is functionalized with acyl chloride in thionyl chloride (SOCl2) before self-assembling. The FTIR spectrum of self-assem-bled MWNT (SA-MWNT) adsorbed on a CaF2 plate modified with PEI/(PSS/PEI)2 shows two characteristic absorption peaks at 1646cm-1 (amide I bond) and 1524cm-1 (amide II bond) resulting from the amide bond formed between the polyelectrolyte films and s-MWNTs. 

H. Kong, R Luo, C. Gao, and D. Yan, Polyelectrolyte-functionalized multiwalled carbon nanotubes preparation, characterization and layer-by-layer self-assembly. Polymer 46, 2472—2485 (2005). 

The developed sensor was used for ultrathin-film measurement. The reflection spectrum was shifted during the deposition of thin films (e.g., self-assembly of polyelectrolyte layers) onto the sensor end. The reflection between the thin film and the fiber endface was neglected because of their similar refractive indices. As the film increased its thickness, the length of the fiber cavity changed. The amount of change was estimated by the phase shift of the interferogram. The device could also be used as an immunosensor in which the optical thickness changes were used to... 

Zhang L, Khougaz K, Moffitt M, Eisenberg A (2000) Self assembly of block polyelectrolytes. In Alexandridis P, Lindman B (eds) Amphiphilic block copolymers self-assembly and applications. Elsevier, Amsterdam... 

Tan C, Pinto MR, Kose ME, Ghiviriga I, Schanze KS (2004) Solvent-induced self-assembly of a meta-linked conjugated polyelectrolyte. Helix formation, guest intercalation, and amplified quenching. Adv Mater 16 1208-1212... 

A large number of examples of redox polyelectrolyte monolayers have been reported [42[. Anson described the adsorption of poly(acrylic acid) onto glassy carbon with electrostatic binding of Ru(NH3)6 and Co(NH3)6 ions from solution [43]. Finklea [44] adsorbed poly(4-vinyl-I-methyl-pyridinium methylsulfate) on self-assembled mercapto-undecanoic self-assembled monolayer (SAM) on gold electrodes to... 

---